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[vsnet-chat 2680] Re: RXJ0640-24 in AC2000?
- Date: Fri, 25 Feb 2000 09:06:17 +0200
- To: <vsnet-chat@kusastro.kyoto-u.ac.jp>
- From: "Berto Monard" <LAGMonar@csir.co.za>
- Subject: [vsnet-chat 2680] Re: RXJ0640-24 in AC2000?
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- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
Brian, I don't know the AC 2000 catalogue but surely the given position
coincides with the location of RX J0640-24 and the noted magnitude (11.8 B =
about 118 V for a DN) fits that for the outburst.
There is visually no other star brighter than magnitude 13 within 2
arcminutes of the location.
The 'coincidence' just confirms RX J0640-24 as a frequent
erupter!
I often have the impression that the near equatorial region (DE +10 to -25)
is 'under' monitored by VS observers. It is in reach of Northern observers (a
bit near the horizon though) and so the Southern groups rather looks more South.
I have reasoned that way ...
Due to my backyard topology I have no means to monitor targets North of -15
except around culmination. But RX J0640-24 is South of that...shame.
Berto
>>> Brian Skiff <bas@lowell.edu> 02/24/00
11:30PM >>>
My reason for asking about
an accurate position for this object is that
I noticed that the AC2000
catalogue contains a bright star near the nominal
location that may be an
early outburst of the dwarf nova. It is only a
single position, and
thus should be treated with some caution:
6 40 47.90 -24 23
15.3 eq. 2000/ep. 1911.016
The blue magnitude is listed as
11.8. There is no star so bright on the
DSS image of the
field.
\Brian
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